2020 SERIES

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2020 SERIES

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Orange Research

Fixed-Orifice FlowmetersOur flowmeters are designed for those applications where a rotameter is not appropriate. Consider the inherent problems of rotameters--they are difficult to read, especially with dirty or opaque fluids, have low pressure ratings and allow vertical orientation only. Now consider that our models have large dials with bold markings and characters that are easy to read from a distance, handle high line pressures and can be mounted in any orientation.
Like rotameters, they are mounted directly in the flow stream, but with bodies machined from solid blocks of metal, they handle high-pressure applications of up to 3000 psi (vs 150 psi for rotameters). This makes them a natural for hydraulic and pneumatic systems.These fixed-orifice models are designed for low flow applications. We use a fixed Delrin orifice centered on a Buna-N diaphragm (Viton is optional), which provides sensitive responses to changes in flow. The rate is displayed on an easy-to-read, square-root-calibrated dial face.We offer them with bodies (and wetted parts) of aluminum, stainless steel or brass. A variety of dial sizes are also available, from 2.5 inch to 4.5 inch. Choose from a wide selection of standard options; enough to satisfy any requirement.